Life-boat.



No. 776,644. PATENTBD DB0. 6, i904.

- B. A. BROWN.

LIFE 1mm.

APPLICATION FILED FEB. 5E9, 190%.

1 110 MODEL.

v a" m HG MODEL;

PATENTED DEC. 6, 1904.

R. A. BROWN.

:LIFE BOAT.

APPLICATION FILED FEB. 29, 1904.

' 3 SHEETS-43111131 2.

No. 776,641. PATENTED DEC. 6,1904

R. A. BROWN.

LIFE BOAT. APPLICATION FILED $1113.29, 1904.

H0 MODEL. 3 SHEETS-SHEET 3.

no. Ween.

l r p e l.) nnl "li etented December 6, llQ'Clll.

.ltOBERZl A. BitO Wl l', Uli Ullillitlitl lliLlhlOlS.

F'Wihtlll, dated. fiecemhei 6,190

Application filed February 29, 1904:. Elerlel No. 19511323 (No model.)

To all whom it 'n'utg concern;

Beitknownthat l, ROBERTA. Bnown,acitiand useful Improvements in Lil'el loete, of

which the following is a specification My invention relates to that (thins ol. lileboats which are provided with an inner em nrrang-ed to remain normelly in equilibrium independently of the rolling or rotatingof the outer hull oi the boat.

The main objecte of this invention are to provide in a boat of this class improved propell ing and steering ineehnnisrn opereted from within the inner ear and. suit-ably connected with said inner car, so to remain 2th all times submerged and in equilibrium regardless of the rolling of the outer hulh and to provide a suitable sup 'iorting' coimontion be tween the hull and can, whereby the weight of the revoluble inner ear normally tends to urge the outer hull into a, certain n lllllOi] of equilibrium. .l :ieoinnplish these o-hjeets hy the structure shown in the ecoomnanying drawings in which-- Figure 1 is a verticallongitudinal eection of the rier portion of e li'lc-boet emietrncted according to my invention. Fig. 2 in a vertical longitudinal section of the forward portion of the seine, being a continuation ol Fig. 1. Fig. 3 is a vertical transverse section on the line 3 3 of Fig. 1. Fig -l in 11 vertical transverse section on the line 4 of In the construction shown the outer hull 5 is s'eubetzintially circular in cross-section, be" j si'ihstzmtielly cylindrical for the main part of its len ;'th and reduced to conical lormnt its fort in end. The hull 5isprelrn'ablydosigned in. 1-inch proporti n that ti '2 unis ol' the outer hull will lie in a inihstentiailly lUllZOll 1 tal nmsition mad :1 (l lll d(llll,l)l(llllftbltlltifi{tlNJVO the surface ol the r The outer hull :3 is preferably provided with a heel or lili (3 and is suitably lmllasted, at; at 7, so as to nor- Inally remain in a position of equilibrium. The hull is mitirely ineloeed and in water tight so that it cannot be swamped by violent l rolling: or cnpsizing. The ballast 'i' it; so arranged as to prevenl'the born: from remaining in any but its nornnil upright position. The outer hull ii is provided with :1 turret 8, havinggsuitablewindow-Hg]its for the purpoeool? guiding" the boat.

Journzilod on horizontal axes within the hull {UG two cars, each :uhipted through the disposition ol its weights to remain in equilibrium regardless ol the angular position of the hull 5 on its mi'- The rear our 9 is journailed on an axis coincident with that of the outer boil 5, while the forward car 10 is journziled on an axle elimsiderehly below the axis of the outer hull, and its weight thus serves to assist in innii'iteining the equilibrium of the outer hull y The rear end of the car 9 is hung; by n breehet 11 from a hollow shaft 12, which is jonrnaled in a brlicket l3, rigidly secured to the outer hull hollow shaft .12 is con- 11F tinned outside of the hull 5 in the .FUllIl of a downwardl p-extendingarm 1-1, which oar jries the propeller nieclninisin. The propeller 15 is rigid on its shaft 16, which in journaled on a, horixontnl axis in the member 17, which in turn is keyed to a, hollow .eihalt l8, journaled in heal-hugs on ll 2 arm l-l. l level geers 19 connect th s-ihnlt Iltl with a hollow shell; 20, which is journalod within the Shaft A eteerinwwheel ill, located within the inner ear 9 and eoi'inccted by ropes with a yoke 22 on the ehiilt Ell), controls the disposition of the member ll, nnd thereby serves to swing the 1)l(l} lflll5l--Sllil l't laterally around the shalt l8 for the pin-none ol BGI'llhgZ, the boat. The propellerwhnlt ill in driven by the bevel- ;renrs 23 and ill, together with their ehnl'te and 26, which ()Al ind concelil'rically through the shall; l-l and l. The shaft 26 is geared to the engine :2! i "may he driven directly by the crzinlw kli t 'lhe mnnoctione with the err glue or crar controlled by the clutches; 23 and Elli, ro -r erllrely To steady the lower end 01 the (n-in l-l, a conioal roller 31 is; jonrnaled on such :arm and bears on an annular track at the stern ol' the hull The winch 31%, which is needed lor raising (ind loweringthe hunt lrol'n aehipor pier-and l'or l1oi;-;tin the anchor, is; located in the for ward eonionl part of the hulh no as to clear the can ill in the mule ol the eapsizing ol the outer hull. in recesses cut at each side of the conical bow of the hull.

In operation the propeller is always submerged, since its supports are rigidly connected with the inner car, which remains in equilibrium regardless of any'rolling ot' the outer hull. Since the forward car is suspended below the center of the hull, its weight tendsto normally urge the outer hull into its normal upright position and opposes the rolling of the outer hull, although the car itself always remains in equilibrium.

it will be seen that some of the details of the construction shown may be altered without departing from the spirit of my invention.

Vv'hatIclaim as my invention, and desire to secure by Letters Patent, is

1. in a boat, the c mbination an outer rotatable hull of substantially circular crosssection; an inner ear journaled in said hull on an axis parallel with but nou-coinci .lent with the axis of the .outer hull, said car being adapted to remain in equilibrium and to normally urge said hull into a certain position of equilibrium, substantially as described.

2. in a boat, the combination of a substantially cylindrical outer hull adapted to float with its axis in a substantially horizontal position; an inner ear journaled in said hull on an axis parallel with but non-coincident with the axis of said outer hull, said car being adapted to remain in equilibrium and to normally urge said hull intoa certain position of equilibrium, substantially as described.

3. in a boat, the combination of an outer hull; an inner ear journals cl on a horizontal axis Within said outer null .dapted to remain in equilibrium durin ollingzsoli said outer hull; an arm extend t'ardly through said inner ear and throngs one and oi said hull and downward on the outside'ol said hull; apropellerjournaled on a horizontal axis on said frame below the axis of said car; and mechanism for operating said propeller from within said car; said arm being rigidly scured to said inner car so to retain the propeller in its normal position below the sur- The running-lights 33 are placed l l l l regardless of the rolling of said "eraser.

face of the Water regardless of the rolling of said outer hull, substantially as described.

i. in a boat, the combination or an outer hull; an inner ear journaled on a horizontal axis in said outer hull and adapted to remain in equilibrium during the rolling of said outer hull; an arm extending; outwardly through said inner ear and through one end of said hull and downward on the outside of said hull; a propeller journaled on a horizontal axis on said frame below the axis of said car; and mechanism for operating said propeller from Within said car; a member journaled on avertical axis on said arm; a propeller journaled on a'horizontal axis on said member; driving" mechanism for operating said propeller from the interior of said ear; and mechanism operated from the interior of said car for rotating said member on its vertical axis independentlyof the operation of said driving mechanism; said arm being rigidly secured to said in ner car, so as to retain the propeller inits normal position below the surface of the water outer hull, substantially as described.

5. in a boat, he combination of an outer;

hull; an inner ear ournaled on a horizon 'al axis in said outer hull and adapted to remain in equilibrium during the rolling of said outer hull; an arm rigidly secured to said car and extending;outwardly from said inner ear and through one end oi said hull and downward on the outside of said hull; a member jou-rnaled on a vertical axis -on said arm; a propeller journaled on a horizontal axis on said memher; a pair of horizontal shafts journaled axi ally of said inner ear; suitable mechanism connecting' one of said horizontal shafts with said propeller; suitable mechanism connecting the other of said shafts with said member; and means within the car for independently rotating said shafts, substantially as described.

Signed at Chicago this 26th day of February, 1904.

ROBERT A. BRQWN.

Vi itnesses:

RUDon' Hummus, linens n A. itmnnnnn. 

